Traction-wheel.



W. T. M. BRUNNEMERI TRACTION WHEEL,

APPLIOATIOH FILED MAY 24, 1912.

1,104,957. Patent fli July 28,1915},

width oi the wheel rim.

rarrnnu OFFICE."

UFLEEB, .0 LEL'QORTE, INDIANA, ASSIGNOR 6F GNEHAEIF TO M. 31 LAEORTE, INDIANA, A. CORPORATION OF INDIANA.

rohom' concern 4 F. WILIJAM T. BRUN- e United States, residthe county of Laporte Sta-he of Endiana, have invented a ceruseiul improvement in Tracwhich we following is a s to tractor wheels the accompanymg drawa plan view oi a part of a elevation; Fig. 3 is a of the flat sides; Fig. view taken along the lines -es and the rim of a ed reinforcement- -u consists of a irons out at their as indicated. Each has the y the fies sides 3 G the conc'urre: S and the convex curves Ea is in place by a series coits'l) or rivets -.r.ranged es incli- "o preferably out x re of es de- 5 with e. wheel rim of trans; c line across the e any poin'b always such sharp edges. :7 are placed closely as chat the entire suroi t. e reed.

form and shape of also the arrangement such reinforcnent cleats on the rim, may be varied without departing from the spirit my invention. angle at the ends might .'i-."l3l responsive to variation in The preferred form of the device, however, is substantially l have shown and described.

in use and oneration of my invention owe: by having the outward edge rp' and hyliaving the grooves edgessznootli and cone cles't readily enters ecure strong grip Trio time it is self- Syccification of Letters Patent.

filed May 24, 1912. Serial No. 699,464.

Patented July 28, 1914.v

cleaning so as to avoid the packing and filling of earth into the groove between the sharp edges. By arranging the reinforce ment cleats so that their sharp edges-overlap that is,'so that the line of surface hearing before it leaves the edges of one pair of cleats is upon the edges of the next pair, the wheel is given a continuous bearing on its outermost periphery,thus avoidin the irregularity of action and jolting 'mldent to some other arrangement.

By making the cleats in the shape shown and bringin their con' ous edges into close proximity. the rim 0 the wheel is entirely reinforced and protected. By making these cleats of angle iron', andparticularly when their ends are out at 45 degrees, the Work o'f-building up the cleats and protecting the wheel rim is accomplished in a very easy manner and withvinexpensivc material and without waste. The sharp edges are uniformly distant from each other at all points in any given plane parallel with the edge of the wheel. By using the angle bar I obtain a relatively sharp outer edge whose side surfaces are inclined to each other at an angle of 90 degrees.

I claim:

The combination with a cylindrical traction wheel rim of grousers mounted thereon, made up of a plurality of flattened angle bars arranged in t m opposite series inclined one to the other a. d intersecting at the center of the rim, the flanges of said angle bars being bent to conform with the curvature of the rim, the angle summits of said angle bars being outwardly turned to form the cutting edge of the grouser and conform substantially with the curvature of therim, said angle bar members being so disposed about the rim that the flanges abut one against the other and completely cover the rim and that the angle summits of the successive angle bars overlap so as to form a continuous line tread about the periphery of the Wheel, each of said angle bar sections .or segments being separately attached to the Wheel rim.

Signed at Lagorte Ind. this 20th day of May 1912.

NILLIAM T. M. BRUNNEMER. *Witnesses:

J. V. Hams, W. H. Bnnnn'rr. 

